That is what the shared bank is for. I put items my main wiz have acquired and put them in shared bank. Go on alt wiz and collect them from shared bank and go sell them at the bazaar. You get plenty of gold for your alt wiz that way. At least this is what I have done.

How do we transfer gold to alt wizard? If we put high selling items in home bank, will that transfer to alt wizards?

There is no direct way to transfer gold. If you put things that can be put in the bazaar for a high price into the shared bank, it will be able to transferred to alt wizards. Personal banks (labeled as "Bank") will not transfer items (each wizard has a separate personal bank but the same shared bank).